Telephone substation apparatus



Nov. 20, 1934; H, K NG 1,981,649

TELEPHONE SUBSTAT I ON APPARATUS Filed Aug. 20, 1950 2 Sheets-Sheet 1' INVENTOR 0. H; KING 8! (Maw/6M ATTORNEY D. H. KING TELEPHONE SUBSTATI ON APPARATUS Filed Aug. 20, 1930 2 Sheets-Sheet 2 INVENTOP 0.15. KING ATTORNEY Patented Nov. 20, 1 934 UNITED STATES rarer reifci:

TELEPHONE SUBSTATION APPARATUS Douglas H. King, I rvington, N. J., ass ignor to Bell Telephone Laboratories, Incorporated, New York, N. Y., a corporation of New York Application August 20, 1930, Serial No. 476,493 13 Claims. (01'. 179 1o0) This invention relates to telephone substation Fig. 5 shows in perspective the wall mounting apparatus andmore particularly to a wall mountof this invention in an open position showing the] ing for a hand telephone. I arrangement of the contact apparatus and switch- An object of this invention is to simplify the hook assembly on the back of the face plate; I

5 strugture and cheapen the cost of a mounting Fig. 6 is a perspective view of the hinge con: 60'" for a hand telephone adapted to be attached. to struction employed for mounting the face plate a vertical surface. I on the base; and I I I A feature of this invention relates to an im- Fig. '7 is a fragmentary cross-sectional View proved switchhook and line contact assembly in on line '77 of Fig. 2 showing the closed po- 10 a mounting for a hand telephone. I sition of the hinge. 65

Another feature of this invention relates to a Referring now to the drawings, the wall'mount support for a hand telephone which extends cir ing for a hand telephone of this invention comcumferentially of the receiver of the telephone prises a hollow base or frame 10, of molded inaset and carries contact actuating means to be en-' terial, such as hard rubber, phenol condense-te m? I gaged by the receiver. the like and preferably having an oval v c c S Jcit our 70" A further feature of this invention is an immounted on a base plate 11 having openings}; I proved construction and assembly of a wall therein for accommodating wood screws, toggle mflllnliing for a hand telephone in which a t bolts or similar fastening-elements (not shewin; parts are easily accessible and may be readily refor attaching the mounting to a vertical surface.

0 paired and replaced. Although the mounting is intended primarily for '75 The wall mounting of this invention comprises attachment to the wall of] a room, it may,if def a hollow base and a face platehinged thereto, the sired, be supported on the side of a desk or cable face plate being provided with a receptacle for net, the wall of an elevator or on any vertical suraccommodat he receiver of ahand telephone face convenient to the subscriber or user. I I

5 and. a recess in which the mouthpiece of the A face plate 13 having the general outline of'go" transmitter portion of the telephone fits. A the hollow base 10, and likewiseformedj of some switchhook on the back of the face plate has one molded material, is provided with anarcuateoutarm loosely fitted'in-a slot in-the supporting rewardly extending receptacle portion 14 which ceptacle. The other arm of theswitchhook' is may be integral with the face plate or attached disposed within the base portion and engages a thereto, and a recess 15'adapted to'receive the" pair of springs, at least one of which in turn mouthpiece B' of' the transmitter portion of a1 engages line contacts mounted on the back of hand telephone, and is attached'to'the base or the face plate. In order to facilitate the assembly frame 10 by ahinge. The hinge, as shown in Figg and repair of the unit the switchhook is loosely 6, comprises two cooperating metallic brackets 1 6 35 'pivoted on an axle extending through a bushing and 17. The bracket 16 is inounted' on lugs 18]. embedded in the switchhook, and having its ends integral with the base or frame. l0 by iiat he'aded disposed in slots in the arms of the channel memscrews 19 and the bracket i7 is attached to the ber. The entire mounting may be attached to back of the face plate 13'by screws20 thr'ea'd'ed a desk, wall or the like by ordinary screws or togto tapped metallic inserts in thefa'ce plate; The

gle bolts passing through openings in a back plate arms '21 of the bracket 16 are providecl jwith'slots attached to the base. 22 extending lengthwise thereofwhich accom jfl The various features and details of this invenmodate and guide headed pins23 mounted in the tion will be clearly evident from the following'de' ends of the arms 24 of the bracketf17. The ma k: scription with reference to the accompanying et 17 is further formed with a projecting tongue 45 drawings, in which 25 which engages thein'ner edge of the projefce'i Fig. 1 isa front view in elevation of the wall tion or tongue 26 on the bracket lfiwhen' thefacei mounting of this invention showing the relation plate is in open positionand servesfas' aistopi oi -the parts entering into the constru member i t no t f e a afi it i.

Fig. 2 isa view in cross section along the line prevent frictional contact of the edge of tlie'face;

50- 2' 2"ofFig'. 1 of the wall mountingshowing the plate adjacent the hinge and th e jbalse. Ihis' f" detail structure; I I I I hinge construction allows movement of 'thefface.,.

Fig. *3 isan exploded View in p'erspectiveshowplate 13 directly away from the baseor frame 101 mg theswitchh'o'ok and-the mounting therefor and increases the clearance between th ae;

Fig. 4 is another perspective view of the switch-' plate 13 and the base or] frame 10. when the" 55-'hooka nd mountingnfterassembly; mounting is openedand thereby inmates the assembly or repair of the line contact and the switchhook assembly to be described in detail hereinafter. When the mounting is closed the face plate 13 is securely held to the base 10 by screws 27 extending through raised portions 23 on the face plate 13 which are formed to fit within recesses 29 in the base 10. The lower raised portion is formed with projecting arms or tabs 30 which bear against the shoulder or edge 31 on the base 10 and absorb any shock resulting from an abnormal downward thrust on the receptacle por-.,

tion 14, thereby protecting the hinge against damage.

The receptacle 14 conforms closely to the periphery of the receiver A of a hand telephone and supports the hand telephone when it is not in use. The bottom of the receptacle l4is provided with a cutout portion or slot 32 extending perpendicular and rearwardly to the face plate 13. An angular molded switchhook is pivotally supported on the face plate 13 and has an arm 33 positioned in the slot 32 and designed to conform closely to the base of the receptacle'14 and the periphery of the receiver A of the hand telephone.

The arm 34 of the switchhook extends substantially parallel to the inner face of the face plate 13 and is engaged at its end by cantilever feather contact springs 35 and 36. The spring 35 in turn engages the contact spring 37 through an insulating bushing 38 and together with the spring 37 actuatesthecontact members 39 and Although but two sets of contact members are shown in this particular embodiment, it is to be understood that any number may be employed and maybe disposed as desired. The switchhook and mounting assembly will be clearly understood with reference to Figs. 3 and 4 which clearly illustrate the relative position of the various elements. A formed metallic stamping hav- ,,ing a channel portion 41 and integral flanges 42 is mounted on'the faceplate 13 by screws 43 pass- ,,out of the slots 45. A U-shaped metallic bracket or lock member 49 which fits about the channel portion 41 is attached thereto by a screw 50 threaded into the base of the channel portion 41 and serves to hold the axle 46 in place. This arrangement facilitates the assembly or dismantling andrepair of the switchhook structure since it requires only the removalor insertion of the screw 50 to completely remove all parts.

Terminals 51 are attached to the spring contact members 39 and 40 and are connected by a suitable cable (not shown) to similar and corre- ""contact member 39 and likewise holds the auxilsponding terminals 52 mounted on the inside of the base or frame 10.

The operation of the line contacts and switch- ,hool: is as follows: Normally, that is, when the hand telephone is not in use and is suspended on the receptacle 14, the arm 33 of the switchhook is depressed i'n'the slot 32, as shown in Fig. 2,

and the arm 34- in engagement with the feather springs'35 and 36 holds the spring 35 clear of the iary spring 37 out of engagement with the contact member 40. When the hand telephone is removed from the mounting the weight on'the .arm 33 of the switchhook is released and the feather springs 35 and 36 rock the switchhook about the axle 46 and allow closing of the line contacts 39 and 40 through the springs 35 and 36. Replacement of the hand telephone upon the mounting, of course, opens the line contacts and returns the elements to their original positions. Excessive rocking of the switchhook in either direction is prevented by knobs or extensions 53 and 54, integral with the switchhook, which ongage the face plate 13 and the base of the channel piece 41, respectively.

' In automatic telephone sets, a dial mechanism 55 is mounted in an opening on the face plate and the associated spring and contact mechanisms are mounted on the back of the face plate within the ,hollow base 10, as shown in Fig. 2. The mounting is equally adaptable to socalled manual telephone sets. In units of the latter type, the dial mechanism 55 is replaced by a number plate or disc closing the aperture for the dial.

What is claimed is:

1. A mounting for a hand telephone comprising a hollow base, a face plate secured thereto and having an arcuate receptacle portion projecting outwardly fro-m and at substantially right angles to the front surface thereof for accommodating the receiver of a hand telephone, con-, tact members within said base, and means for actuating said contact members in response to the placement of said receiver in said receptacle and theremoval of the receiver therefrom, com prising an angular member pivotally mounted n said face plate and having an arm'disposed in said receptacle portion. I

2. A mountnig for a hand telephone comprising a face-plate, supporting means integral with said face plate for engaging a portion of the periphery of the receiver of a hand telephone, switching contacts mounted on the back of said face plate, and a hook member including a 1oai r 11 5- 3. A mounting for a hand telephone comprisingflg;

a hollow base, a face plate hinged theretoyareceptacle on said face platefor engaging the re- I ceiver ofahand telephone, said receptaclehaving a cutout portion in its base,;electrical contact members mounted on the innerface of said face .1

plate, and an angular member pivotallylsupported on said face plate andhaving one, arm;

positioned in said cutout portion to engagesaiding' a slot in its base and extending legthwise13 thereof, and a switchhook having an arm positioned said slot, said arm having'a face conforming closely to the base of the receptacle.

5.In amounting for telephones, a' switchhook assembly comprising a mounting plate, a supporting member attached to said plate havingtwo parallel spaced arms each provided with a slot, a Y switchhook having a portion positionedbetween said arms, an axle extending. through said switchhook and having its ends disposed in said 145;

slots, a lock member engaging said axle, and a single screw fastening said lock m'ember to said supporting member to secure said axle in said slots,

6. In a mounting for telephones, a switchhook1 5o assembly comprising a channel member having integral flanges for attachment to a support, each of the sides of said channel member having a slot therein, a switchhook having an arm positioned between the sides of said channel member, an axle extending through said switchhook and having its ends disposed in said slots, and a U-shaped bracket mounted about said channel member and having its arms engaging the ends of said axle to lock said axle in said slots.

7. A mounting for a hand telephone comprising a face plate having a receptacle portion for accommodating the receiver of said hand telephone, said portion having a slot extending lengthwise thereof, a switchhook and contact members mounted on said face plate, said switchhook having an arm disposed in and substantially coextensive with said slot, and resilient means engaging a portion of said switchhook and flexible thereby for actuating said contact members.

8. A mounting for a hand telephone comprising a face plate having a receptacle portion for accommodating the receiver of said hand telephone, said portion having a slot extending lengthwise thereof, a switchhook and contact members mounted on said face plate, said switchhook having an arm disposed in and substantially coextensive with said slot, and a cantilever spring engaging a portion of said switchhook and flexible thereby for actuating said contact members.

9. A mounting for a hand telephone comprising a face plate having a receptacle portion for accommodating the receiver of said hand telephone, said portion having a slot extending lengthwise thereof, a switchhook and contact members mounted on said face plate, said switchhook having an arm disposed in and substantially coextensive with said slot, certain of said contact members engaging a portion of said switchhook and being actuatable thereby.

10. A mounting for a hand telephone comprising a base, a face plate, and a hinge connecting said base and face plate, said hinge comprising a bracket having slotted arms mounted on said base, and a member attached to said face plate and carrying pins slidable in said slotted arms, said bracket and member being so disposed that the face plate is movable directly away from said. base and rotatable with respect thereto.

11. A mounting for a hand telephone comprising a base, a face plate, and a hinge connecting said base and face plate, said hinge comprising a bracket having slotted arms mounted on said base, a stamping attached to said face plate and carrying pins slidable in said slotted arms, said bracket and stamping being so disposed that the base plate is movable directly away from said base and rotatable with respect thereto and cooperating tongues on said bracket and stamping for limiting the movement of said face plate.

12. In a mounting for telephones, a switchhook assembly comprising a supporting plate, a channel member mounted thereon and provided with parallel slots, a switchhook, a pin provided with an enlarged central portion extending through said switchhook and adapted to abut against walls of said channel member, and having bearing surfaces resting in said slots for pivotally supporting said switchhook on said channel member, and a U-shaped member fixed to said channel member by a single screw for holding said pin and switchhook in position.

13. A mounting for a hand telephone, comprising a supporting base member, a face plate member for supporting the hand telephone, and a hinge connecting said plate and base members comprising a bracket having a slotted arm, secured to one of said members, and a second bracket for mounting on the other of said members, having a portion slidable in said slot, said brackets being so disposed that the face plate member is movable directly away from said supporting base member and rotatable with respect thereto.

DOUGLAS H. KING. 

